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15. Commissioning
15.1 Performing pre-start checks
Once all components have been installed, you can start commissioning by performing the prestart checks.
CHECKING HYDRAULIC INSTALLATION
The water inlet and outlet connections are correctly
connected to the unit
The hydraulic circuit is filled correctly and the fluid flows
freely without any signs of leaks or air bubbles. When
ethylene glycol anti-freeze is used, check that the
concentration level is correct
The water flow complies with the specifications. If this is not
the case, adjust the water flow accordingly.
The water quality complies with the indicated standards.
The condensate drain hose is connected to the drain tray
and the evacuation pipe and allows liquid to drain freely.
If any of the above conditions is not met, rectify the issue and repeat the check.
15.2 Performing a test run
When all pre-start checks and the final visual check have been
completed successfully, put the Cassette unit into operation
and ensure that the following conditions are met:
1.
There are no unusual noises or vibrations in the
running components, particularly not in the indoor fan
drive system.
2.
The voltage measured at unit supply terminals
matches the specified design voltage.
3.
The unit is wired for correct control of unit fan, cooling
and heating modes.
If any of the above conditions is not met, rectify the
issue and repeat the check.
16. Maintenance
IMPORTANT
The user is responsible for ensuring that the unit is in perfect working order and that the technical installation and
minimum annual maintenance operations have been performed by a qualified technician in accordance with the
procedures described in this manual.
These units have been designed for minimum maintenance through the use of permanently lubricated components.
However, there are operational maintenance requirements that require regular attention to ensure optimum
performance. Depending on actual operational constraints and regulatory changes, the installer might recommend
increased maintenance operations and more frequent inspections.
16.1 Regular servicing tasks
WARNING
Danger to life from electric shock
The devices are operated with 230-V alternating voltage. Any contact with live conductors can present a danger to
life from electric shock.
Electrical maintenance work must be undertaken by a trained electrician.
•
•
Ensure that you have disconnected the electricity supply before you carry out any maintenance work.
Secure the electricity supply against being switched on again unintentionally.
In order to ensure the safe and trouble-free operation of the Fan Coil unit, perform the following maintenance tasks at regular intervals.
General inspection
CHECKING ELECTRICAL INSTALLATION
The electrical installation has been carried out
according to the applicable local electrical code and
the wiring diagram for the relevant model
Correctly sized fuses or a circuit breaker have been
installed on the main switchboard
The supply voltages match the voltages specified
in the unit wiring diagram
All cables are properly identified and tightly
connected to the unit's terminal board
All cables and wires are clear of or protected from
pipework and sharp edges
15.3 Performing the final tasks
When the test run has been completed successfully, perform
the following final tasks:
1.
If needed, fix the cables and the pipes on the wall
with clamping collars.
2.
Ensure that the unit is clean and free of remainder
installation material.
3.
Ensure that the plastic cover is in place and secured.
4.
Operate the unit in the presence of the user and
explain all functions.
5.
Show the user how to remove, clean and place back
the filters.
6.
Hand this manual over to the user and remind him
that it must be kept in a safe place.
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